Wanted to upgrade my chainset originally ordered next day off your competitor Wiggle but after cut off for next day delivery they informed me a glitch meant no chainset and I could re order and miss my deadline not impressed at all until I checked you guys out instead same service better stock and a whopping £70 pounds cheaper absolutely made up result

John,
13 August 2018

Fantastic product at a great price.

Great shifting with no missed shifts, looks great performs awesome, nothing better than Shimano.

Mark,
16 April 2018

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Q&A (2)

Is the 9100 series chain set compatible with the previous Dura ace groupset? In my case that is all I need to upgrade. The rest of the di2 components are fine.

Hi Steve,

The 9100 chainset is compatible with the previous generation Dura-Ace.
Please see the link below for all Shimano groupset compatibility: